/*
* RadialGradient.java
*
*
* The Salamander Project - 2D and 3D graphics libraries in Java
* Copyright (C) 2004 Mark McKay
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on January 26, 2004, 1:55 AM
*/
package com.kitfox.svg;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.geom.*;
import java.awt.*;
import com.kitfox.svg.xml.*;
import org.xml.sax.*;
//import org.apache.batik.ext.awt.*;
import com.kitfox.svg.batik.*;
/**
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class RadialGradient extends Gradient {
float cx = 0.5f;
float cy = 0.5f;
float fx = 0.5f;
float fy = 0.5f;
float r = 0.5f;
/** Creates a new instance of RadialGradient */
public RadialGradient() {
}
/*
public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
{
//Load style string
super.loaderStartElement(helper, attrs, parent);
String cx = attrs.getValue("cx");
String cy = attrs.getValue("cy");
String fx = attrs.getValue("fx");
String fy = attrs.getValue("fy");
String r = attrs.getValue("r");
if (cx != null) this.cx = (float)XMLParseUtil.parseRatio(cx);
if (cy != null) this.cy = (float)XMLParseUtil.parseRatio(cy);
if (fx != null) this.fx = (float)XMLParseUtil.parseRatio(fx);
if (fy != null) this.fy = (float)XMLParseUtil.parseRatio(fy);
if (r != null) this.r = (float)XMLParseUtil.parseRatio(r);
}
*/
/*
public void loaderEndElement(SVGLoaderHelper helper)
{
super.loaderEndElement(helper);
build();
}
*/
protected void build() throws SVGException
{
super.build();
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("cx"))) cx = sty.getFloatValueWithUnits();
if (getPres(sty.setName("cy"))) cy = sty.getFloatValueWithUnits();
if (getPres(sty.setName("fx"))) fx = sty.getFloatValueWithUnits();
if (getPres(sty.setName("fy"))) fy = sty.getFloatValueWithUnits();
if (getPres(sty.setName("r"))) r = sty.getFloatValueWithUnits();
}
public Paint getPaint(Rectangle2D bounds, AffineTransform xform)
{
com.kitfox.svg.batik.MultipleGradientPaint.CycleMethodEnum method;
switch (spreadMethod)
{
default:
case SM_PAD:
method = com.kitfox.svg.batik.MultipleGradientPaint.NO_CYCLE;
break;
case SM_REPEAT:
method = com.kitfox.svg.batik.MultipleGradientPaint.REPEAT;
break;
case SM_REFLECT:
method = com.kitfox.svg.batik.MultipleGradientPaint.REFLECT;
break;
}
com.kitfox.svg.batik.RadialGradientPaint paint;
if (gradientUnits == GU_USER_SPACE_ON_USE)
{
paint = new com.kitfox.svg.batik.RadialGradientPaint(
new Point2D.Float(cx, cy),
r,
new Point2D.Float(fx, fy),
getStopFractions(),
getStopColors(),
method,
com.kitfox.svg.batik.MultipleGradientPaint.SRGB,
gradientTransform);
}
else
{
AffineTransform viewXform = new AffineTransform();
viewXform.translate(bounds.getX(), bounds.getY());
viewXform.scale(bounds.getWidth(), bounds.getHeight());
viewXform.concatenate(gradientTransform);
paint = new com.kitfox.svg.batik.RadialGradientPaint(
new Point2D.Float(cx, cy),
r,
new Point2D.Float(fx, fy),
getStopFractions(),
getStopColors(),
method,
com.kitfox.svg.batik.MultipleGradientPaint.SRGB,
viewXform);
}
return paint;
}
/**
* Updates all attributes in this diagram associated with a time event.
* Ie, all attributes with track information.
* @return - true if this node has changed state as a result of the time
* update
*/
public boolean updateTime(double curTime) throws SVGException
{
// if (trackManager.getNumTracks() == 0) return false;
boolean changeState = super.updateTime(curTime);
//Get current values for parameters
StyleAttribute sty = new StyleAttribute();
boolean shapeChange = false;
if (getPres(sty.setName("cx")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != cx)
{
cx = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("cy")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != cy)
{
cy = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("fx")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != fx)
{
fx = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("fy")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != fy)
{
fy = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("r")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != r)
{
r = newVal;
shapeChange = true;
}
}
return changeState;
}
}